Means for cooling the interiors of receptacles.



PATENTBD JULY 2, 1907.

' A. R. GLARKE. MEANS FOR COOLING THE INTERIORS 0F REGEPTAGLES.

AlPLIOATION IILBD D30. 7, 1905.

.l7zaaiz7r 05706 29 6X97??? UNITED STATES PATENT OFFICE, ,1;

ALVA Rf LARKE, OF Los ANeELEs'oALrFoRNIA, ASSIGNOR TO cushion. REFRIGERATOR GAR A n MANUFAGTURING or CAL ORNIYA.

'- the air contained therein below the temperature of the outside air when such temperature is above 50 degrees" Fahrenheit; and the object thereof is to provide simple means without the use of ice ,or other artificial refrigerants to accomplish this purpose.. p In the accompanying drawings forming a part of this application I have illustrated my invention as applied to a cooling box for use in a kitchen to hold-such (10- mestic eatables as are usually kept in the refrigerator, but the principles thereof be applied for coolingthe interior oianyreceptacle such asthe interior of cars used in transporting iruitsthat require refrigeration, or it may be applied to the room or building or it may be used for cooling and ventilating passenger coaches.

In the drawings: Figure'l is' a vertical longitudinal central section. Fig. 2 is a vertical central cross section. Fig. 3 is a detail of the door partly in section" and partly broken away. Fig. 4 is-a cross section of one corner on the line 4-'4 of Fig. 1,. i

ner boards 5 which are secured at the top and bottom; and near the center by the cross or horizontal -frame boards 6. To these frame boards are fastened the ver;- tical slats 7., forming an outside or slatted shell finishing boards 8' are secured to the horizontal frame boards. Blocks 9 are secured to the corner boards at the bottom 7 thereof thereby providing legs for the reception of casters 10, whichprovide means for conveiiiently moving the same when desired. A top 11 covers the shell and is provided in the center thereof with'afilling port 12 which port is provided with aremovable cover. 13. Just below the cover is a liquid pan-14inthe center of which is a chemical receptacle 15 having a cover 16. Within this receptacle a re the chemicals 17. Wa-

. ter 18. fills the pan to nearly the top of thechemical receptacle and access to the'chemical by the water is had through small ports 19 atthe bottom of the chemical receptacle; That portion of the interior in the upper portion of the shell and below the liquid pan 50. may be termed the food chamber which is provided with perforated sides 20 and ends 21 which are-prefembly made of sheet iron, either galvanized or nickel plated or they may be covered with porcelain paint;

MEANS F01 COOLING THE INTERIORSOF RECEP TAC LES.

Specification of Letters Patent} p hppli'cation filed December 7,1905. uSerial No. 290,828.

In the draw-ihgs at each corner are the vertical cor COMPANY, or LOS ANGELES, i iLIl ORNIA, Acoarona'rlonf;

. Patented Jiily a 1on7.

slatted shelves 22 areprovided upon which the anti-.-

cles-to be placed in the jchamberrest, At theback side of thefoodchamber is a frame 23 Which'iscovered with a coarse "cloth, prefer-ably burlap 24 the upper end of which extends over and int'o the bottomf.- of a liquid pan. Like ira'mes'25 are pnovided at the 1 ends oi'the foodchamber also-covered with burlap26. I i

The bottoms of these frames are received within and z rest upon the drain pan 27 which i flprovigd with a central port-28 thereinso that whatevei liquidmaydrip into the drain pan may passdn'to bucket 29 which when full can be' taken out and. the liqiiid poured back into 6 the pan 14for reuse Within the food chamber -i's. a

small tank 30 for holding drinking water. This tank is provided with an outletpipe j31'ivhich has a cock 32 'to control the flowof water thereirom. The'd oo'r 33 i's also a slatted structure and is pr'o'vided at the top wgui 'lo. a small trough 34"having ports 35 in'the bottom thereof through which the liquid passes to, burlap136 which is: intermediate-the lining sr nd the outside side.- t n short piece of burlap 38,has' one endf extending into the liquid pan and-the otherlrests; aboveatheltrongh iri the 5 door tolwhichit carries the liquid f'ordistribution upon 1 the burlap oi the door.- a

The chemical receptacle a -presently first filled with those chemicals which. are. required toikeep the;

water in a pure state, so that it mayhotrdeposit slime.

upon the burlap as; it passes the same. I I have found in practice that for' hard water a combination of fifteen parts of soda and fifty parts"0sea-sa1t or chlorid .of sodium gives very satisfactory resiiltsi, Where the "water is soft 10 parts of' lime should bepdded. to these jchemicalaand 1 have alsoiound tha't 20"part s oi-borax and 5 parts of ammonia aredesirable with lwater like the water used in'the city of Los Angeles in addition to; thesaltand soda. l Q 1 Where there is a greater distance betweeii liquid pan and the drain pan than ina'receptac1af0r holding food;

such as'a cooling room or a ear ier-transporting fruit I ,provide a plurality of screens cover'edwith burlap. The number depending u'pori'the distance between the liquid pan and the drain pan and the temperature of theoutside airand the movement of the air, inore frames being needed for a moving structure like a railroad car than for a stationary structure; 1'

By this construction it will be seen that the sides and ends of the receptacle are'alway's kept damp'and the open slat work permits of a circulation of air around moist burlap thereby reducing the temperature in the food chamber as long as there is heat enough on the outside thereof to produce evaporation.

I have found in actual practice that when the term the food mantel-ma the temperature within the food v chemicals as before mentioned a. food chamber can be I used .the Whole year round in the city of Los Angeles 7 than a year last past, and the food will be kept purer is notjthe case where ice is used.

where I have had my device in practical use for more than it is possible to keep it in theordinary refrigerators using ice owing-to the fact -that in my device'there is a circulationof iresh'a ir'through theffood chamber,.whieh Havin described m inventiongwhat 1 dimes. new

. and desire to secure by Letters Patent is:

1.- Means for cooling'th'e interior of receptacles comprise ing a liquid pan secured in the topof'the receptacle; :1

chemical receptacle in sa i d pan in comfmunication there with through ports at'th'e bottom of-che'micat receptacle;

a drain pan at the bottom of the receptacle; fibrous cloth .iextending from the bottom of the liquid pan'up over thetop thereof and downwardly therefrom; and slatted sides surrounding said cloth.

'2. A cooling chambertcomprised oii Slatted'sidest a-.liq'-,

in said pain in communication therewith throngh ports at the bottom of the cheniical fre'ceptacle ;'a drain pan at the. bottom of saidchainher; a perforated lining around said chamber; fibrous cloth projectinginw the liquid pan and extending "downwardly betweeni't'he lining and sla'tted ex" teriorl, p 3. A -cooling chamber comprised of slatted sides; a liquidpan in the top of said. chamber; a chemical receptacle in said liquidpan a drninpan at the bottom of said chamber, saiddrain pau'having a port'inth.bot'tom-thereof..,a' -receptacle below said port;' a pe rforated lining around said chamber and fibrous cloth projecting. into the liquid ui'd pan in thetop of saidchamber ,achemical receptacle,

"pan and extending downwardly between the lining and slatted exterior.

4..Means for cooling the interior of receptacles. comprisingbiltr and inner perforate walls: a liquid pan secured in;tl ie t0p 01. said receptacle; a drain pun at the bottom oi the receptaclettibrous cloth extending' from the bottom of the Iiquidpan up and over the top thereof and downwardly-therefrom; a door secured to the front: side thereof having an outer and inner perforate wall: liquid distributing means secured to the upper end of said door; and a frame having a fibrous cloth secured between the walls of said door.

5;.Means for cooling the interior of receptacles, conipris ing-outer andfreinovable inner perforate walls: a liquid pan secured ii -the top of said receptacle: a drain pan of the bottom of the receptacle; fibrous cloth'extending from the bottolno the liquid pan up and over the top thereof and downwardly-therefrom{a door secured to the front 'side thereof having an outer and inner perforate wall; a liquid distributing trough secured to the upper end of said door having outlets in the bottom thereof and fibrous cloth secured between the outer and inner walls of said door.-

6."Means for cooling the interior of receptacles. conipris ing outer and inner perforate walls :a liquid pan secured in the top of said receptacle; a drain aunt the bottom of the receptacle; 3 fibrous cloth extending from the bottom of thcliquid pan up and over the top thereof and down- ,ini'lerperfiratesyall; liquid distributing means secured to 't heupp ei' end of said doon; fibrous cloth extcndinu'dowir wardly from the liquid pan and tcrminaliinn above and over'the said liquid distributin;., means; and tibrous cloth secured -to-said door intermediate the perforated \vulls thereof. A

In witness that I claim the foregoing I have hereunto subscribed my name this 29th day of November, 1905. p I ALVA 1t. cLAnnn.

Witnesses:

G. E. lilinrl'mm,v M. C.,NIcKnLns0N. 

